February, 1920: 1 Troy Oz. Osmiridium (Tasmania) ~ £ 40. (USD$ )
March, 1920: 1 Troy Oz. Osmiridium (Tasmania) = £ 42.50 (USD$ 155.55)
December, 1920: 1 Troy Oz. Osmiridium (Tasmania) ~ £ 35. (USD$ )
Dec. Low, 1920: 1 Troy Oz. Osmiridium (Tasmania) ~ £ 30. (USD$ )
March, 1920: Osmiridium Price Price in Tasmania, Australia?
1918-1919: A 'significant' export of Osmiridium from Papua (reported in Pacific Ports Manual, 7th Ed. 1921) was presumably declared in avoirdupois ounces (hence, 5.5 lbs. avd or 80.66 Troy Ounces.) A packet of 2.5 lbs. avd is 36.46 Troy Ounces, whereby a single opportune discovery (in the rainy season, April 1919?) represented nearly half the entire Papuan export for that year.
c.January 1920: 1 Troy Oz. Osmiridium (London) ~ £ 32.91 (USD$ 156.66)
Anecdotal, by August 1921:
1920: USGS market prices suggest January 1920 price for the Osmiridium quotation; US imports of osmiridium were nearly four times higher in 1920.
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